DAVID KENNETH GIFFORD
Pilots at Pigeon Hl Rd, Cherry Brook, MA

License number
Massachusetts A2823559
Issued Date
Jun 2016
Expiration Date
Jun 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
26 Pigeon Hill Rd, Cherry Brook, MA 02493

Professional information

David Gifford Photo 1

Managing Transfers Of Information In A Communications Network

US Patent:
7191447, Mar 13, 2007
Filed:
Aug 25, 2000
Appl. No.:
09/645933
Inventors:
John R. Ellis - Woodside CA, US
David K. Gifford - Weston MA, US
G. Winfield Treese - Newton MA, US
Assignee:
Soverain Software LLC - Chicago IL
International Classification:
G06F 13/00
US Classification:
719310
Abstract:
The invention features various techniques for managing transfers of information in public packet switched communications networks. In one aspect, the invention provides a system for identifying updated items of network-based information, such as pages, to users in a network. A master server receives the data from each of a plurality of network servers and merges them into one or more master logs. The logs have entries that pertaining to creation of or changing of pages of information. Another aspect of the invention features a system for implementing security protocols. A proxy server translates links from a protocol incompatible with the network tool to a protocol compatible with the network tool and back-translates the link. Another aspect of the invention features a system for managing authenticating credentials of a user. A proxy server manages a user's authenticating credentials automatically on behalf of the user.


David Gifford Photo 2

Digital Active Advertising

US Patent:
6199051, Mar 6, 2001
Filed:
Mar 2, 1998
Appl. No.:
9/033255
Inventors:
David K. Gifford - Weston MA
Assignee:
Open Market, Inc. - Cambridge MA
International Classification:
G06F 1760
US Classification:
705 75
Abstract:
A complete system for the purchasing of goods or information over a computer network is presented. Merchant computers on the network maintain databases of digital advertisements that are accessed by buyer computers. In response to user inquiries, buyer computers retrieve and display digital advertisements from merchant computers. A digital advertisement can further include a program that is interpreted by a buyer's computer. The buyer computers include a means for a user to purchase the product described by a digital advertisement. If a user has not specified a means of payment at the time of purchase, it can be requested after a purchase transaction is initiated. A network payment system performs payment order authorization in a network with untrusted switching, transmission, and host components. Payment orders are backed by accounts in an external financial system network, and the payment system obtains account authorizations from this external network in real-time. Payment orders are signed with authenticators that can be based on any combination of a secret function of the payment order parameters, a single-use transaction identifier, or a specified network address.


David Gifford Photo 3

Screening For Genetic Variation

US Patent:
5750335, May 12, 1998
Filed:
Apr 22, 1993
Appl. No.:
8/052157
Inventors:
David K. Gifford - Weston MA
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
C12Q 168, C12P 1934, C07K 14195, C07K 1700
US Classification:
435 6
Abstract:
Disclosed is a method of genetic screening for a nucleotide variation, the method including the steps of (A) providing a mixture of nucleic acids comprising heteroduplex nucleic acids and excess homoduplex nucleic acids, wherein each said heteroduplex comprises a test nucleic acid strand isolated from an organism and a reference nucleic acid strand, each said heteroduplex also comprising a mismatched nucleotide pair, wherein said excess homoduplex nucleic acids are generated by reannealing of a first test or reference nucleic acid strand with a fully complementary second test or reference nucleic acid strand; (B) subjecting said mixture to a mismatch binding protein under conditions which promote binding to form a heteroduplex/binding protein complex; and C) detecting the presence of said mismatched nucleotide pair as an indication of the presence of genetic variation between said test and reference nucleic acids.


David Gifford Photo 4

Controlled Transfer Of Information In Computer Networks

US Patent:
7124092, Oct 17, 2006
Filed:
Jul 3, 2001
Appl. No.:
09/897407
Inventors:
David K. Gifford - Weston MA, US
Assignee:
Soverain Software LLC - Chicago IL
International Classification:
G06Q 30/00
US Classification:
705 14
Abstract:
The present invention relates to techniques for controlling transfers of information in computer networks. One technique involves transmitting from a server computer to a client computer a document containing a channel object corresponding to a communication service, and storing an access ticket that indicates that a user of the client computer permits the information source computer to communicate with the user over a specified channel. Another technique involves transmitting smart digital offers based on information such as coupons and purchasing histories stored at the computer receiving the offer. Another technique involves transmitting from a server computer to a client computer a request for a user's personal profile information, and activating a client avatar that compares the request for personal profile information with a security profile of the user limiting access to personal profile information. Another technique involves transmitting from a server computer to a client computer a document containing an embedded link, activating the embedded link at the client computer and recording activation of the embedded link in a metering log.


David Gifford Photo 5

Open Network Payment System For Providing For Real-Time Authorization Of Payment And Purchase Transactions

US Patent:
6205437, Mar 20, 2001
Filed:
Mar 2, 1998
Appl. No.:
9/032852
Inventors:
David K. Gifford - Weston MA
Assignee:
Open Market, Inc. - Cambridge MA
International Classification:
G06F 1760
US Classification:
705 75
Abstract:
A complete system for the purchasing of goods or information over a computer network is presented. Merchant computers on the network maintain databases of digital advertisements that are accessed by buyer computers. In response to user inquiries, buyer computers retrieve and display digital advertisements from merchant computers. A digital advertisement can further include a program that is interpreted by a buyer's computer. The buyer computers include a means for a user to purchase the product described by a digital advertisement. If a user has not specified a means of payment at the time of purchase, it can be requested after a purchase transaction is initiated. A network payment system performs payment order authorization in a network with untrusted switching, transmission, and host components. Payment orders are backed by accounts in an external financial system network, and the payment system obtains account authorizations from this external network in real-time. Payment orders are signed with authenticators that can be based on any combination of a secret function of the payment order parameters, a single-use transaction identifier, or a specified network address.


David Gifford Photo 6

Digital Active Advertising

US Patent:
6195649, Feb 27, 2001
Filed:
Mar 2, 1998
Appl. No.:
9/033143
Inventors:
David K. Gifford - Weston MA
Assignee:
Open Market, Inc. - Cambridge MA
International Classification:
G06F 1760
US Classification:
705 75
Abstract:
A complete system for the purchasing of goods or information over a computer network is presented. Merchant computers on the network maintain databases of digital advertisements that are accessed by buyer computers. In response to user inquiries, buyer computers retrieve and display digital advertisements from merchant computers. A digital advertisement can further include a program that is interpreted by a buyer's computer. The buyer computers include a means for a user to purchase the product described by a digital advertisement. If a user has not specified a means of payment at the time of purchase, it can be requested after a purchase transaction is initiated. A network payment system performs payment order authorization in a network with untrusted switching, transmission, and host components. Payment orders are backed by accounts in an external financial system network, and the payment system obtains account authorizations from this external network in real-time. Payment orders are signed with authenticators that can be based on any combination of a secret function of the payment order parameters, a single-use transaction identifier, or a specified network address.


David Gifford Photo 7

Method Of Providing Internet Pages By Mapping Telephone Number Provided By Client To Url And Returning The Same In A Redirect Command By Server

US Patent:
5812776, Sep 22, 1998
Filed:
Jun 7, 1995
Appl. No.:
8/486797
Inventors:
David K. Gifford - Weston MA
Assignee:
Open Market, Inc. - Burlington MA
International Classification:
G06F 1516, G06F 1582
US Classification:
39520047
Abstract:
This invention relates to methods for providing access to network servers. In particular, the process described in the invention includes client-server sessions over the Internet involving hypertext files. In the hypertext environment, a client views a document transmitted by a content server with a standard program known as the browser. Each hypertext document or page contains links to other hypertext pages which the user may select to traverse. The user may also access a hypertext page by providing a conventional telephone number or other descriptor. The server maps such a telephone number or descriptor to a target page identifier using a translation database and automatically directs the client to retrieve the desired page.


David Gifford Photo 8

Programmed Sequential Mutagenesis

US Patent:
6242222, Jun 5, 2001
Filed:
May 26, 1999
Appl. No.:
9/194936
Inventors:
David K. Gifford - Weston MA
Assignee:
Massachusetts Institute of Technology - Cambridge MA
International Classification:
C12Q 168, C12P 1934, C07H 2104
US Classification:
435 912
Abstract:
Methods and products are provided for the oligonucleotide-mediated polymerase-dependent mutation of template nucleic acid sequences in a programmed sequence over multiple rounds of nucleic acid synthesis. The methods employ series of mutagenic primers, all of which may be present in the initial reaction system, in which at least some of the mutagenic primers do not bind to or promote polymerization from the original template nucleic acids, but do bind to and promote polymerization from the mutagenized products of earlier rounds of the program of sequential mutagenesis. The products of the invention include mixtures of such mutagenic primers. The products and methods have applications in the biological and computational sciences.


David Gifford Photo 9

Replica Routing

US Patent:
7149771, Dec 12, 2006
Filed:
Dec 28, 1999
Appl. No.:
09/472964
Inventors:
David K. Gifford - Weston MA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
G06F 15/13
US Classification:
709203, 709226, 709235, 709240
Abstract:
The present invention is a new method called replica routing that automatically directs client computers that request a service to a server replica for that service. The replica chosen by replica routing is the replica that is expected to provide the best performance to the client based upon the client's location in the internetwork topology and the estimated performance of the internetwork. In addition, the system and method is designed to permit new replicas to be flexibly added without undue administrative overhead.


David Gifford Photo 10

Ruler Arrays

US Patent:
2010030, Dec 2, 2010
Filed:
Jul 16, 2008
Appl. No.:
12/668944
Inventors:
David K. Gifford - Weston MA, US
P. Alexander Rolfe - Cambridge MA, US
International Classification:
C12Q 1/68, C40B 30/04, C07H 21/04, C40B 50/06
US Classification:
506 9, 435 6, 536 231, 506 26
Abstract:
The invention in some aspects relates to methods for measuring distances between locations in a nucleic acid. The invention relates to methods of genetic analysis useful for detecting genomic alterations. In some aspects, the invention relates to methods for detecting genomic insertions, deletions, and inversions.